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In statistics, probability theory and information theory, pointwise mutual information ( PMI ), [1] or point mutual information, is a measure of association. It compares the probability of two events occurring together to what this probability would be if the events were independent.
Wireless access point. [1] [2] In computer networking, a wireless access point, or more generally just access point ( AP ), is a networking hardware device that allows other Wi-Fi devices to connect to a wired network or wireless network. As a standalone device, the AP may have a wired connection to a switch or router, but, in a wireless router ...
An Access Point Name ( APN) is the name of a gateway [1] between a mobile network ( GSM, GPRS, 3G, 4G and 5G) and another computer network, frequently the public Internet. [2] A mobile device making a data connection must be configured with an APN to present to the carrier. The carrier will then examine this identifier to determine what type of ...
The channel access control mechanisms provided by the MAC layer are also known as a multiple access method. This makes it possible for several stations connected to the same physical medium to share it. Examples of shared physical media are bus networks, ring networks, hub networks, wireless networks and half-duplex point-to-point links. The multiple access method may detect or avoid data ...
Service Access Point. A Service Access Point ( SAP) is an identifying label for network endpoints used in Open Systems Interconnection (OSI) networking. The SAP is a conceptual location at which one OSI layer can request the services of another OSI layer. As an example, PD-SAP or PLME-SAP in IEEE 802.15.4 can be mentioned, where the medium ...
Point-to-Point Protocol. In computer networking, Point-to-Point Protocol ( PPP) is a data link layer (layer 2) communication protocol between two routers directly without any host or any other networking in between. It can provide loop detection, authentication, transmission encryption, [1] and data compression .
The term point-to-point telecommunications can also mean a wireless data link between two fixed points. The wireless communication is typically bi-directional and either time-division multiple access (TDMA) or channelized.
OPC Data Access is a group of client–server standards that provides specifications for communicating real-time data from data acquisition devices such as PLCs to display and interface devices like Human–Machine Interfaces (HMI), SCADA systems [2] and also ERP / MES systems. [3] The specifications focus on the continuous communication of data.